Sprinkler



FIG. 1 is a front view of a sprinkler showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is an upper view thereof;

FIG. 6 is a lower view thereof; and,

FIG. 7 is a perspective view thereof. 

The ornamental design for a sprinkler, as shown and described. 